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2132505 = 32547389
BaseRepresentation
bin1000001000101000011001
311000100020200
420020220121
51021220010
6113412413
724061134
oct10105031
94010220
102132505
111227201
1286a109
1359884b
143d721b
152c1cc0
hex208a19

2132505 has 12 divisors (see below), whose sum is σ = 3696420. Its totient is φ = 1137312.

The previous prime is 2132483. The next prime is 2132513. The reversal of 2132505 is 5052312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 318096 + 1814409 = 564^2 + 1347^2 .

It is not a de Polignac number, because 2132505 - 212 = 2128409 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23650 + ... + 23739.

It is an arithmetic number, because the mean of its divisors is an integer number (308035).

22132505 is an apocalyptic number.

It is an amenable number.

2132505 is a deficient number, since it is larger than the sum of its proper divisors (1563915).

2132505 is a wasteful number, since it uses less digits than its factorization.

2132505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47400 (or 47397 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2132505 is about 1460.3098986174. The cubic root of 2132505 is about 128.7152543938.

Adding to 2132505 its reverse (5052312), we get a palindrome (7184817).

The spelling of 2132505 in words is "two million, one hundred thirty-two thousand, five hundred five".

Divisors: 1 3 5 9 15 45 47389 142167 236945 426501 710835 2132505